Improved machine for making brass kettles



i .To all whom it may concern:

NiTnD STATES PATENT muon.

n. c; nLAKnsLnn, n. rLATT, Ja., AND n. JORDAN, on WATDRBURY, OONN.

IMPROVED MACHINE FOR MAKING BRASS KETTLES.

Specification forming part of Letters Patent No. 15,96 ll, dated October2S, 1856.

Be it known that we, EDWARD C. BLAKns- Lian, ENoon PLATT, Jr.,andEDMUNDJORDAN, all of the city of Waterbury, in the county of N ew Haven andState of Connecticut, have invented a new and useful Improvement inMachinery for Making Brass Kettles from Sheet-Brass, and we do herebydeclare that the following is a full, clear, and exact description ofthe construction, character, and operation of the same, reference beinghad to the accompanying drawings, which make a part of this specication,in which- Figure l is a perspective View of the machine. Fig. 2 is alongitudinal section cut vertically through the center.

Our improvement consists in so constructing the machine that while themale die or punch is forcing the centralpart of the sheet metal into thef'emale part a set of rollersimpinging on that part of the sheet metalor blank which is outside of the female part, and rolling or pressing itagainst a revolving disk or rim, will continually roll the metal thinneras it approaches the top of the kettle, so that by taking sheet metalrolled to theproper thickness for the bottom of the kettle and placingit inthe machine in the proper position for the dies and rollers to actupon it by the rotary motion of the female die and the proper feedmotion of the male die and reducing-rollers the kettle will be formedthick at the bottom and gradually decreasing in thickness to the top,the proper shape for the metal to form the most durable kettle which canbe made of that size and that weight of `metal similar to those made byhand.

Ve make the frame-work, of cast-iron or any yother suitable material,substantially in the form shown in the drawings.

We make the female die, of cast iron or any oth er suitable material, ofthe proper form for the kettle, as seen at A, Fig. 2, and with asubstantial circular disk or rim, as shown at B B, Figs. l and 2,against the face of which the reducing-rollers a a, Figs. l and 2, (withothers not seem) press the sheet metal, to reduce the thickness towardthe top. We attach this female die to a shaft, C, and to this shaft C isalso attached a pulley, D,Figs. 1 and 2, to which we apply the power (bya band) to revolve the female die; (or a gear-wheel may be used whenthought best.)

Ve make the male die or punch E, Fig. 2, of cast-iron or any othersuitable material, of theform of the inside of the kettle, as shown inFig. 2, and slip it onto the end of the shaft F, Fig. 2, `so that it mayrevolve, ,to prevent friction or straining the brass when the female dieis revolved.' This shaft F slides freely in the hollow shaft G, Figs. land 2, and, by means of a screw, b, revolved by the wheel H, the maledie C is forced into the female die A, to raise or form the kettle or todraw it back after the kettle is formed.

We make the reducing-rollers c c (of any desired number) of cast-steelor any other suitable material, and iinish their peripheries crowning,so that they may impingeonly on a very limited surface, to make thereducing easy. We fit them into the proper holders, c c, and pass theShanks of these holders through holes,(to work freely,) in adisk or rim,I, Figs. l and 2. le attach this disk I firmly to the hollow shaft orcollar K and pass-it onto the hollow shaft Gr, which shaft G has a malethread or screw, d', in which the female thread of the circular nut cworks, to force up the reducing-rollers or to let them back.

Having made and arranged the parts as be` fore described, we place thecentral part of the blank or piece of sheet-brass of which the kettle isto be made or formed over the female die A, Fig. 2,- and turn the wheelH in the direction indicated by the dart in Fig. 1,which will revolvethe male screw b, Fig. 2, to force the male die E, and with it the sheetmetal, into i the female die A, and by turning the circular nut orfemale screw e in the direction indicated by the dart in Fig. l, itwillsforce the hollow shaft or collar K and diskl toward the female die,and consequently the reducing-rollers a c against that part of the blankwhich rests against the rim B B. XVe then apply the power to the drum orVpulley D, and so revolve the female die A, with its disk or rim B B,which will cause the reducing-rollers c a to roll over the sheet metalor blank and reduce it gradually to the decreasing thickness desired;and if the male die be continually pressed into the female die with theproper velocity by revolving the wheel H,(either by hand or otherpower,) and the reducing-rollers: be pressed against the blank with theproper force, by turning the circular nut or female screw e until themale die has forced the central Vpart of the blank tothe bottom of thefemale die the blo reducing-rollers L a, and the whole s con kettle willbe perfectly formed; and by turnstruoted, arranged, and made to producethe ing the Wheel H and nut c in the opposite diresult substantially inthe manner and by the reoton to that indicated by the darts the ketmeans'herein set forth. tle may be taken ont and another blank sub- E. C.BLAKESLEE. st1tuted, and so on. 1 T

1th 00H` PLATT, JR. What We olalm as our lnventlon, and desue EDMUNDJORDAN to secure by Letters Patent, is-

The combination of the revolving female die i Vitnesses: A and its diskor rim B B with the male die H. HIGGINS, E when these are combined withthe adjustai R. FITZGERALD.

